#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j,x=1;
    cin>>n;
    int a[11][11]={0};
    for(i=0;i<n;i++){
        for(j=0;j<n;j++){
            if(i+j<n){
                a[i][j]=j+i+1;
            }else{
                a[i][j]=2*n-(i+j)-1;
            }
        }
    }
    /*
      
      
      
    */
    for(i=0;i<n;i++){
        for(j=0;j<n;j++){
            printf("%3d",a[i][j]);
  
        }
        cout<<endl;
    }
    return 0;
}
/**************************************************************
	Problem: 1193
	User: chenmingyu
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2076 kb
****************************************************************/